I've got a Uniden 68 in my pickup, but the car is probably going to become my go-to road trip rig...and the Uniden is just too big to readily mount anywhere in there. (Honestly, it's too big for the Ranger too. I just like it 'cause it looks cool.)

Good radio
Have it tuned, it will walk and talk just like the 68
Use a permanent mount antenna, not a magnet. You can unscrew it when you need too
You can get good trunk mount brackets.
Ground the antenna

__________________Charlie
"A common mistake people make when trying to design something completely fool proof, is to underestimate the ingenuity of a complete fool."

I have a few CB’s still. It’s not the size, they all only have an output of 4 watts legally. All in the antenna AND where it is positioned on your vehicle. You’ll need a SWR meter to properly tune your CB radio.